The source code also contains references to what looks like a
question and answer service, with lines like "You might try
rephrasing or tagging your question to make it easier for someone
to answer" and "We haven't received an answer to your..." as well
as something called "Google Experts." This could be the revamp of
Aardvark,
the Quora-like Q&A service that Google acquired last year.

You can out the source code for yourself by
following this link and hitting "View...Source" from your
browser menu.